STV8207 datasheet(3/149 Pages) STMICROELECTRONICS

3 / 149 page

3/149

STV82x7

Table of Contents

Chapter 1

General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

1.1

STV82x7 Overview .............................................................................................................. 8

1.1.1

Core Features ............................................................................................................................................8

1.1.2

Software Information .................................................................................................................................9

1.1.3

Device Input Modes ...................................................................................................................................9

1.1.4

Electrical Features ...................................................................................................................................10

1.2

Typical Applications ........................................................................................................... 10

1.3

Pin Descriptions and Application Diagrams ....................................................................... 14

Chapter 2

System Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Chapter 3

Digital Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

3.1

Sound IF Signal .................................................................................................................. 21

3.2

Demodulation ..................................................................................................................... 22

Chapter 4

Dedicated Digital Signal Processor (DSP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

4.1

Back-end Processing .........................................................................................................24

4.2

Audio Processing ............................................................................................................... 25

4.3

ST WideSurround ............................................................................................................... 28

4.4

ST OmniSurround .............................................................................................................. 28

4.5

Dolby Pro Logic II Decoder ................................................................................................ 28

4.6

Bass Management .............................................................................................................28

4.6.1

Bass Management Configuration 0 .........................................................................................................29

4.6.2

Bass Management Configuration 1 .........................................................................................................30

4.6.3

Bass Management Configuration 2 .........................................................................................................31

4.6.4

Bass Management Configuration 3 .........................................................................................................32

4.6.5

Bass Management Configuration 4 .........................................................................................................33

4.7

SRS WOW and TruSurround XT ...................................................................................... 33

4.7.1

SRS TruSurround ....................................................................................................................................33

4.7.2

SRS WOW ...............................................................................................................................................34

4.8

Smart Volume Control (SVC) ............................................................................................. 34

4.9

ST Dynamic Bass .............................................................................................................. 35

4.10

5-Band Audio Equalizer .....................................................................................................35

4.11

Bass/Treble Control ........................................................................................................... 35

4.12

Automatic Loudness Control .............................................................................................. 36

4.13

Volume/Balance Control .................................................................................................... 36

4.14

Soft Mute Control ............................................................................................................... 37

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